Stake box



R. W. GOETZ Jan. 8, 1935.

STAKE BOX OriginalFiled Jan. 20, 1932 2 Sheets-Sheet 1 Fig.5

INVENTOR ,c/r/M mu R. w. GOETZ Jan. 8, 1935.

STAKE BOX Original Filed Jan. 20, 1932 Patented Jan. 8, 1935 STAKE BOX HRowland Goetz, Mount Lebanon, Pa., assignor "I to Henry F. Teichmann,Washington, Pa.

Application January 20, .Serial No. 587,715 I Renewed December 7, 1933 7Claims.

place, and it is among the objects of the invention to provide stakeboxes for concrete forms embodying adjustable members which shall beadapted to provide for the adjustment of the forms to a line after thestakes are driven.

Another object of the invention is the provision of stake box structuresof simple and durable mechanical construction which shall embodypositive means for adjusting the forms to which they are attached in asimple and expedient manner.

Still a further object of the invention is the provision of adjustablemeans for line forms which are self -adjusting in the sense that theadjusting. mechanism yields itself to the position or movement of thestake when it is driven into the ground without imposing any strains onthe forms to cause distortion. In setting up forms for concrete roadbeds or the like, the specifications require that the forms be laid forseveral hundred feet ahead of the mixing and laying apparatus and theseforms must be set up to a line which constitutes the edge of the roadbed, there being two sets of forms laid parallel to each other whichconsist of sections that are laid end to end and anchored in place bymeans of stakes. The forms, after the concrete is set, are removed andset up in advance of the mixing apparatus. I

The forms are steel or wood members which are provided with stake boxesthat constitute lugs or brackets having a perforation for receiving astake which is driven into the ground. When driving the stakes, theforms become distorted due to the stakes striking rocks and otherwisedeflecting from a straight line, and in the conventional types of formsas heretofore employed no provision was made for alining the forms afterthe stakes were driven.

In accordance with the present invention the forms may be set up ashereinbefore explained, the stakes drivenin place and then adjustmentmay be made to bring the face of the forms in absolute alinement withthe line to which the forms are set.

The invention will become more apparent from a consideration of theaccompanying drawings constituting a part hereof in which like referencecharacters designate like parts and in which:

Figures 1, 2 and 3 represent top plan views of stake boxes embodying theprinciples of this invention, showing broken'portions of the forms towhich they are attached;

Figure 4 'a front'elevational View of. one of the stake boxes showingthe stake driven in place and illustrating the adjusting mechanism;

Figure 5 a side elevational view of the stake box shown in Figure 4;

Figurefi a topplan view'of a plurality of sectional forms arranged-inend to end relation showing the forms out of alinement before adjustmentthereof is made; and.

Figure 7 is a side elevational view thereof.

With reference to Figures 6 and 7 of the draw-. ings, 1 designates theform'which comprises an angle plate or the like, the side 2 of whichcomprises the face which must be set to a line, such as the dotted line3, and inthe drawings the'fo-rm is shown as set to the line atone pointonly which is designated by'thereference character A. 4 designates stakeboxes which are integrally formedto the walls of the form or securedthereto as by riveting, welding or the like, and these boxes areprovidedwith means for receiving'stakes 6 which are driven through theboxes to anchor the forms after they have been set in place. i Indriving the stakes 6,:the forms become distorted, asillustrated'inFigure6, and adjustment is made'by'means of the following mechanism. I o

With reference to Figures ,1 to 5 of the drawings, thestake boxes 4 areshown assecurely attached tov the forms 1, the upper portions of whichare turned down as illustrated at '7, so that the side walls 8 'of thestake boxes interact with the depending portions to securely-hold themin place. Disposed against the face wall 2 of'the form, is anangle'plate9 which is fitted in the side walls 8 although they maybe'secured in any other suitable manner. The angle plates 9 are providedwithperforations for receiving a pin or bolt 10 that secures a pluralityof radius plates 11 and 12 each of which'is provided with a cam slot13.. The. radius plates areprovided with ears or lugs 14. for receiving.theyends of pipe members that constitute levers for manipulating theplates. The stakes 6 are'disposed through the cam slots 13 of the radiusplates when they are driven into the ground and a slide plate 16 isinterposed between the radius plates 11 and 12 and adapted for slidingmovement. The plate 16 is provided with a slot 16a to permit movement ofthe stake and with slots 17 for receiving a wedge 18 which when drivenin place abuts the transverse member 18a to interlock the radius plateswith the stake 6.

In operation the forms are set up as shown in Figures 6 and 7 of thedrawings, each stake 6 is disposed through a pair of radius plates 11,12 and the slot of the associated slide plate 16.

If after driving the stakes theforms are ,out of alinement as showninFigure 6,;the pipe levers 15 are applied to the ears of lugs 14of theradius plates and the latter are subjected to angular movement wherebythe forms are shifted relative to the pivoting point which is the stake6; By manipulating the radius plates in ,the manner shown in Figures 1,2 and 3 of thedraw'ingsyari;

ous adjustments of the forms'ma'ybe effected without requiring theremovalbf the stake =6as has heretofore been necessary, so that a seriesof sectional forms can be anchored and alined in a minimum period oftime.

The stakes 6 are shown as .greatly distorted "from their verticalposition, in Figures 4, 5, and 7,

of the drawings, :but this is not;gr eatly: exaggerated as the stakesvery often assume-this position when they are deflected by rocks orother obstructions. y z'} The function of the radius plates relative tothe stake 6 is on the principle of alazy tongas is plainly demonstratedin Figures 1,.2and 3 of the drawings, Figure 2 illustrating the neutralposition wherein the radius plates arein their normal alinement with thestake 6. Figure lilIustrates an extreme position of the radius plateswherein the stake 6 abuts the ends of .cam slots 13, and Figure 3illustrates the other extreme position wherein the stake abutsthe-opposite ends of the slots. I q

The foregoing description of the function of the adjustable stake boxesis for extreme cases of misalinement where the stakes aresubjected todeflection beyond the limits of theadjusting mechanism. In practice,however, such ordinary deflections of the stakes as take; place whenthey are driven into .the ground will cause-no distor-, tion of theforms since the radius plates will auto matically adjust themselves tothe stakes'without imposing any forces on the forms; However, by meansof the adjustable mechanismxofi the stake boxes, it will be unnecessaryto. exercise great care in initially setting the forms as they may bequickly and'accurately alined by a fe simple adjustments.

By means of the stake boxes and adjusting mechanism herein described,concrete forms may be set with facility and dispatch and can beaccurately alined without the laborious manipulations necessary in theemployment of conventional forms of stake boxes.

Although one embodiment of the invention has been herein illustrated anddescribed, it will be obvious to those skilled in the art that variousmodifications may be madein the details of construction withoutdeparting from the principles herein set forth, as for example may berequired. in adapting the adjustable stake boxes for'other uses thanroad beds as herein specified.

I claim as my invention:

1. A form for laying concrete and the like which comprises a facingmember having stake boxes each comprising an anchorage member having apair of movable abutments for receiving a stake and means directlyengaging said abutments for locking them against movement.

2. Forms for laying concrete or the like comprising facing membersflhaving stake boxes for receiving stakes, said boxes embodying radiusplates each of which is provided with a cam slot for receiving a stake,means for mounting said plates to permit relative displacement of theforms and stakes and means for locking said 'jplates. v

" 3. An anchorage device for alining forms or the like comprisingincombination a form for laying concrete a plurality of movable platespivoted to said form by a common fulcrum memher, said plates having camslots for receiving a stake whereby the plates are subjected to movementto prevent displacement of the form when the stake is driven and meansfor locking said plates. I I

i. Forms for laying concrete or the like having in combination with aform movable anchorage abutments for receiving stakes, said abutmentscomprising means swingably mounted on said form, and means for lockingsaid abutments against movement. V

5. An anchorage device for alining forms or the like comprising incombination a form for laying concrete a plurality of movable segmentshaped plates pivoted to said form in superposed relation, a slide platedisposed between said segment plates, said plates 'having slottedopenings for receiving a stake, and said slide plate having a slot forreceiving a wedge, and an abutment for said wedge for locking saidplates against movement. I

6. In a road form adapted to be secured in place by stakes, means forsecuring said form to said stakes, which means include a plurality ofstake engaging members, at least one of such members comprising aswingable form-adjusting device movable in opposite directionsrelatively to anotherof said members and in service engaging the lateralface of a stake, whereby, the stake being immovable, the position of theform may be adjusted thereby, and means for locking the form to thestake when desired adjustment has been obtained. a

7. In a road form adapted to be'secured in place by stakes, means forsecuring said form to said stakes, which means include a plurality ofstake-. engaging members, at least one of such members comprising anelement of a swingable form-adjusting device movable in oppositedirections relatively to another of said members and in service engagingthe lateral face of a stake, whereby, the stake being immovable, theposition of the form may be adjusted thereby, and means for locking saidmembers against such relative movement and effecting rigid engagementwith the stake.

ROWLAND W. GOETZ.

